package com.sky.service.impl;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.sky.constant.MessageConstant;
import com.sky.dto.UserLoginDTO;
import com.sky.entity.User;
import com.sky.exception.LoginFailedException;
import com.sky.mapper.UserMapper;
import com.sky.properties.WeChatProperties;
import com.sky.service.UserService;
import com.sky.utils.HttpClientUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.HashMap;

/**
 * 套餐
 */
@Slf4j
@Service
public class UserServiceImpl implements UserService {

    @Autowired
    UserMapper userMapper;

    @Autowired
    WeChatProperties weChatProperties;

    @Override
    public User userLogin(UserLoginDTO dto) {

        //调用微信接口服务，获得当前微信用户的openid
         HashMap<String, String> map = new HashMap<>();
        map.put("appid",weChatProperties.getAppid());
        map.put("secret",weChatProperties.getSecret());
        map.put("js_code", dto.getCode());
        map.put("grant_type","authorization_code");
         String json = HttpClientUtil.doGet("https://api.weixin.qq.com/sns/jscode2session", map);
        System.out.println("map："+map.toString());
        log.info("json:{}",json);
         JSONObject jsonObject = JSON.parseObject(json);
         String openid = jsonObject.getString("openid");
         log.info("openid:{}",openid);
        //判断openid是否为空，如果为空表示登录失败，抛出业务异常
    if(openid==null){
        throw new LoginFailedException(MessageConstant.LOGIN_FAILED);
    }
        //判断当前用户是否为新用户
      User user=  userMapper.getByOpenid(openid);
        //如果是新用户，自动完成注册
if(user == null){
    user = User.builder().openid(openid).createTime(LocalDateTime.now()).build();
    userMapper.insert(user);
}
        //返回这个用户对象
        return user;
    }
}
